Exploring the Evolutionary Origins of Bigfoot

Posted Sunday, October 04, 2026

By Squatchable.com staff

So I was scrolling through YouTube the other night, looking for something interesting to dig into, and I stumbled across a channel called Speculatorium. The host put together a really thoughtful piece exploring what Bigfoot could be from both a mythological and a speculative biology angle. It's one of those videos that makes you think, even if you already know in your gut that Sasquatch is out there. The video kicks off by acknowledging just how massive a discovery Bigfoot would be if real. An unknown humanoid living undetected for thousands, maybe millions of years in the wilderness of one of the most heavily surveyed nations on Earth. The host admits to leaning toward the idea that Bigfoot is more myth than flesh and blood, pointing out that humans don't need much basis in reality to build legends. And honestly, that's a fair point to raise. He brings up some fascinating parallels too, like Pan from Greco-Roman mythology, the Ghillie of Ireland, the Woodwose from Germanic and Tolkienian folklore, and Basajaun from Basque mythology. All hairy forest beings. Native American legends echo the same motif, and the host suggests it might be a universal archetype of human thought. He frames Bigfoot as part of a long Western tradition of hairy forest deities, which is honestly a really cool way to look at it. But here's where it gets interesting for those of us who lean the other way. The host doesn't just leave it at myth. He dives into some genuinely creative speculative evolution, asking what biological origins could possibly explain Sasquatch. The most popular theory out there is the Gigantopithecus connection. A giant orangutan relative that once roamed Asia. The logic makes sense on the surface. Orangutans are solitary like Bigfoot is reported to be, and mountain gorillas adapted to alpine conditions relatively quickly. But the host points out a big problem. No ape, living or extinct, has ever truly managed to survive in the cold, high-latitude climates of Eurasia. Gigantopithecus itself died out because of climate change in central China, and that was in a warm subtropical environment. If it couldn't handle that, the idea of it conquering the harsh seasonal habitats of North America seems like a real stretch. Then he explores some more obscure options. What if Bigfoot descended from one of the early primates that lived in North America during the Paleogene? The last known primate there, Ekgmowechashala, lived over 30 million years ago in what is now Nebraska. You'd have to do a lot of work to explain how a lemur-like creature independently evolved ape-like features, but it's an intriguing thought experiment. He also considers New World monkeys, specifically capuchins, which are clever little critters that actually reached North America before the Great American Biotic Interchange. But no known neotropical monkey has ever colonized even most of southern North America, so that seems unlikely. The most plausible primate option, according to the host, might be Old World monkeys. Japanese macaques, their Tibetan cousins, and the snub-nosed monkeys of central China have all adapted to cold climates. Snub-nosed monkeys can even walk on two legs sometimes and are suspected by some to have inspired yeti stories. The massive Pliocene colobine Paradolichopithecus gets a special mention too. It lived across central Eurasia, was about the size of a mandrill, and may have been capable of bipedal walking. It died out in the early Pleistocene due to climate change, but given its large range and unique adaptations, the host suggests it might have been plausible for it to adapt, colonize the mammoth steppe, and reach North America. Here's where the host raises a really important challenge though. How could any primate immigrating to North America in the recent past not only survive but grow so large, potentially larger than any known primate in history, in a habitat so uninviting that almost no primates have ever managed to live there? Primates just don't seem equipped to live alongside mammoths, Homotherium, wolves, and muskoxen, much less compete with them. And then he lands on the one group of primates that did conquer those habitats. Hominids. Us. He walks through Homo erectus, which left Africa nearly 2 million years ago and lived across southern Eurasia, but there's basically no evidence they reached the Americas. Neanderthals or early Homo sapiens would probably have to be considered human cultures rather than a separate species. The really fascinating part comes when he talks about more basal hominids, the oreopithecines. Sometimes called the missing link ape people. He mentions that other creators like Thought Potato and Alien Evolution have explored this angle, and there are good reasons to consider it. They look the part, sitting right between humans and apes appearance-wise. A group of them, the genus Paranthropus, survived in Africa until under 1.5 million years ago and had more robust jaws, which the host describes as "perhaps more Sasquatchy." There's even speculation that oreopithecines made it out of Africa, with Homo floresiensis, the famous hobbits, possibly being descended from them. If they managed to migrate out of Africa, cross the Wallace Line, and give rise to a new species whose earliest remains date to nearly a million years after their extinction elsewhere, they'd at least be a solid candidate for what Bigfoot could be. The video really is a goldmine for anyone who loves blending folklore, cryptozoology, and speculative biology. The host handles the topic with genuine curiosity and respect, even while sharing his own skepticism. It's the kind of content that sparks great conversations around a campfire, and honestly, that's what this community is all about. If this sounds like your kind of rabbit hole, definitely go check out the Speculatorium channel on YouTube. The full video goes into even more detail, and it's worth every minute.